Fix message tail concatenation in full_message

* Don't append tail if it's empty, because that gives us a rogue newline character.
headius · May 8, 2024 · d1a8740 · d1a8740
1 parent eb5db1e
commit d1a8740
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/core/src/main/java/org/jruby/runtime/backtrace/TraceType.java b/core/src/main/java/org/jruby/runtime/backtrace/TraceType.java
@@ -569,7 +569,7 @@ private static void printErrMessageToStream(IRubyObject exception, RubyString er
                     if (highlight) errorStream.catString(RESET);
                 }
 
-                if (tail != null) {
+                if (tail != null && tail.length() > 0) {
                     errorStream.cat('\n');
                     if (!highlight) {
                         errorStream.catString(tail);
@@ -767,11 +767,11 @@ public static void printBacktraceToStream(ThreadContext context, IRubyObject bac
                 }
                 if (stackTraceLine instanceof RubyString) {
                     errorStream.catString("from " + stackTraceLine);
+                    errorStream.cat('\n');
                 }
                 else {
                     errorStream.append(stackTraceLine);
                 }
-                errorStream.cat('\n');
             }
 
             if ((elements.length > i)) {